<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	<style type="text/css">
		*{
			margin: 0;
			padding: 0;
		}
		div{
			width: 100px;
			height: 100px;
			background: blueviolet;
			position:absolute; 
			left:0; 
			top:0;
		}
		.tip{
			width:80px; 
			height:80px; 
			border:10px dotted blue;
			position:absolute;
			top:0;
			left:0;
	    }
	</style>
	<script src="bundle.js" type="text/javascript" charset="utf-8"></script>
	</head>
	<body>
		<div></div>
	</body>
</html>
